—Have you been to the United States?
—Yes, only once. I ________ there only for seven days.
| A．have stayed | B．was staying |
| C．stayed | D．had stayed |
Can $ 500 _________ the cost of the whole trip?
| A．contain | B．cover | C．include | D．afford |
What he said is not to the point _____ we should focus on constructing a harmonious society.
| A．that | B．which | C．where | D．if |
My cousin went to Canada two years ago. He ____ there for a few months and then went to America.
| A．worked | B．would work | C．would be working | D．has been working |
My laptop computer, _______ I can’t go on with my work, broke down the other day.
| A．for which | B．which | C．without it | D．without which |
Though every parent admits that reading contributed to _________ better mind of their child, yet let’s face it, who has got _________ time?
| A．a; the | B．a; / | C．the; the | D．the; / |